justiciable
Concise Oxford English Dictionary © 2008 Oxford University Press:
justiciable /dʒʌˈstɪʃəb(ə)l/
▶adjective Law subject to trial in a court of law.
– origin ME: from OFr., from justicier ‘bring to trial’, based on L. justitia ‘equity’, from justus (see just).
'justiciable' also found in these Oxford entries:

